aic_isa.c revision 302408 
1/*-
2 * Copyright (c) 1999 Luoqi Chen.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: stable/11/sys/dev/aic/aic_isa.c 298432 2016-04-21 19:48:28Z pfg $");
29
30#include <sys/param.h>
31#include <sys/callout.h>
32#include <sys/kernel.h>
33#include <sys/lock.h>
34#include <sys/module.h>
35#include <sys/mutex.h>
36#include <sys/bus.h>
37
38#include <machine/bus.h>
39#include <machine/resource.h>
40#include <sys/rman.h>
41
42#include <isa/isavar.h>
43#include <dev/aic/aic6360reg.h>
44#include <dev/aic/aicvar.h>
45
46struct aic_isa_softc {
47	struct	aic_softc sc_aic;
48	struct	resource *sc_port;
49	struct	resource *sc_irq;
50	struct	resource *sc_drq;
51	void	*sc_ih;
52};
53
54static int aic_isa_alloc_resources(device_t);
55static void aic_isa_release_resources(device_t);
56static int aic_isa_probe(device_t);
57static int aic_isa_attach(device_t);
58
59static u_int aic_isa_ports[] = { 0x340, 0x140 };
60
61#define	AIC_ISA_NUMPORTS nitems(aic_isa_ports)
62#define	AIC_ISA_PORTSIZE 0x20
63
64static struct isa_pnp_id aic_ids[] = {
65	{ 0x15309004, "Adaptec AHA-1530P" },
66	{ 0x15209004, "Adaptec AHA-1520P" },
67 	{ 0 }
68};
69
70static int
71aic_isa_alloc_resources(device_t dev)
72{
73	struct aic_isa_softc *sc = device_get_softc(dev);
74	int rid;
75
76	sc->sc_port = sc->sc_irq = sc->sc_drq = NULL;
77
78	rid = 0;
79	sc->sc_port = bus_alloc_resource_anywhere(dev, SYS_RES_IOPORT, &rid,
80						AIC_ISA_PORTSIZE, RF_ACTIVE);
81	if (!sc->sc_port) {
82		device_printf(dev, "I/O port allocation failed\n");
83		return (ENOMEM);
84	}
85
86	if (isa_get_irq(dev) != -1) {
87		rid = 0;
88		sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
89						    RF_ACTIVE);
90		if (!sc->sc_irq) {
91			device_printf(dev, "IRQ allocation failed\n");
92			aic_isa_release_resources(dev);
93			return (ENOMEM);
94		}
95	}
96
97	if (isa_get_drq(dev) != -1) {
98		rid = 0;
99		sc->sc_drq = bus_alloc_resource_any(dev, SYS_RES_DRQ, &rid,
100						    RF_ACTIVE);
101		if (!sc->sc_drq) {
102			device_printf(dev, "DRQ allocation failed\n");
103			aic_isa_release_resources(dev);
104			return (ENOMEM);
105		}
106	}
107
108	sc->sc_aic.dev = dev;
109	sc->sc_aic.res = sc->sc_port;
110	mtx_init(&sc->sc_aic.lock, "aic", NULL, MTX_DEF);
111	return (0);
112}
113
114static void
115aic_isa_release_resources(device_t dev)
116{
117	struct aic_isa_softc *sc = device_get_softc(dev);
118
119	if (sc->sc_port)
120		bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->sc_port);
121	if (sc->sc_irq)
122		bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq);
123	if (sc->sc_drq)
124		bus_release_resource(dev, SYS_RES_DRQ, 0, sc->sc_drq);
125	sc->sc_port = sc->sc_irq = sc->sc_drq = NULL;
126	mtx_destroy(&sc->sc_aic.lock);
127}
128
129static int
130aic_isa_probe(device_t dev)
131{
132	struct aic_isa_softc *sc = device_get_softc(dev);
133	struct aic_softc *aic = &sc->sc_aic;
134	int numports, i;
135	u_int port, *ports;
136	u_int8_t porta;
137
138	if (ISA_PNP_PROBE(device_get_parent(dev), dev, aic_ids) == ENXIO)
139		return (ENXIO);
140
141	port = isa_get_port(dev);
142	if (port != -1) {
143		ports = &port;
144		numports = 1;
145	} else {
146		ports = aic_isa_ports;
147		numports = AIC_ISA_NUMPORTS;
148	}
149
150	for (i = 0; i < numports; i++) {
151		if (bus_set_resource(dev, SYS_RES_IOPORT, 0, ports[i],
152				     AIC_ISA_PORTSIZE))
153			continue;
154		if (aic_isa_alloc_resources(dev))
155			continue;
156		if (aic_probe(aic) == 0)
157			break;
158		aic_isa_release_resources(dev);
159	}
160
161	if (i == numports)
162		return (ENXIO);
163
164	porta = aic_inb(aic, PORTA);
165	aic_isa_release_resources(dev);
166	if (isa_get_irq(dev) == -1)
167		bus_set_resource(dev, SYS_RES_IRQ, 0, PORTA_IRQ(porta), 1);
168	if ((aic->flags & AIC_DMA_ENABLE) && isa_get_drq(dev) == -1)
169		bus_set_resource(dev, SYS_RES_DRQ, 0, PORTA_DRQ(porta), 1);
170	device_set_desc(dev, "Adaptec 6260/6360 SCSI controller");
171	return (0);
172}
173
174static int
175aic_isa_attach(device_t dev)
176{
177	struct aic_isa_softc *sc = device_get_softc(dev);
178	struct aic_softc *aic = &sc->sc_aic;
179	int error;
180
181	error = aic_isa_alloc_resources(dev);
182	if (error) {
183		device_printf(dev, "resource allocation failed\n");
184		return (error);
185	}
186
187	error = aic_attach(aic);
188	if (error) {
189		device_printf(dev, "attach failed\n");
190		aic_isa_release_resources(dev);
191		return (error);
192	}
193
194	error = bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_CAM | INTR_ENTROPY |
195	    INTR_MPSAFE, NULL, aic_intr, aic, &sc->sc_ih);
196	if (error) {
197		device_printf(dev, "failed to register interrupt handler\n");
198		aic_isa_release_resources(dev);
199		return (error);
200	}
201	return (0);
202}
203
204static int
205aic_isa_detach(device_t dev)
206{
207	struct aic_isa_softc *sc = device_get_softc(dev);
208	struct aic_softc *aic = &sc->sc_aic;
209	int error;
210
211	error = aic_detach(aic);
212	if (error) {
213		device_printf(dev, "detach failed\n");
214		return (error);
215	}
216
217	error = bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih);
218	if (error) {
219		device_printf(dev, "failed to unregister interrupt handler\n");
220	}
221
222	aic_isa_release_resources(dev);
223	return (0);
224}
225
226static device_method_t aic_isa_methods[] = {
227	/* Device interface */
228	DEVMETHOD(device_probe,		aic_isa_probe),
229	DEVMETHOD(device_attach,	aic_isa_attach),
230	DEVMETHOD(device_detach,	aic_isa_detach),
231	{ 0, 0 }
232};
233
234static driver_t aic_isa_driver = {
235	"aic",
236	aic_isa_methods, sizeof(struct aic_isa_softc),
237};
238
239extern devclass_t aic_devclass;
240
241MODULE_DEPEND(aic, cam, 1,1,1);
242DRIVER_MODULE(aic, isa, aic_isa_driver, aic_devclass, 0, 0);
243